I feel your pain, 2 years ago I finally tackled my long-term increasing nerve-pain and I am glad I did. I've RRMS but a lot of nerve pain. It was a crawling, dragging, aching kind of pain, hard to describe - but I lost so many nights' sleep from it.
I take amitriptyline, 25mg, although you might find even 10mg or 20mg might be enough to deal with your pain. This is a very low dose of an old-fashioned anti-depressant but it is one of the few things that works for neruological pain. It also seems to have help my migraines, so I am glad about that.
Negatives are that at 25mg it has increased my fatigue, but I had to weigh it up. Prior to being on a proper neurological pain med (lived for years on a variety of painkillers to no aviail) I'd missed so many nights' sleep so I prefer to take the ami now and avoid that awful pain and insomnia.
Now I take 25mg about 3-4 hours before bedtime, pain is gone in 1 hour, I sleep very well. Ok I need more coffee in the morning to wake up, but it takes about a month for your body to adjust to this med, so perhaps it might be worth a try for you? I definitely cannot drink more that 2 small units of alcohol on any day while taking this medication - it makes you feel completely exhausted the next day, for me, not worth exceeding a small alcohol limit.
Let us know how you get on if you do choose something to treat the pain.
p.s. I have also heard of people taking Tegretol for nerve-pain in MS
RR-MS dx 1998 and Coeliac dx 2003
Copaxone, Cymbalta. EPO, Fish Oils, Vitamin D3 2000 IU daily, Cal/Mag/Zinc, Multivitamin/mineral, Co-Enzyme Q10, Probiotics, Milk Thistle.